CN206095511U - Pressure transmitter with HART communication function - Google Patents
Pressure transmitter with HART communication function Download PDFInfo
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- CN206095511U CN206095511U CN201620920896.XU CN201620920896U CN206095511U CN 206095511 U CN206095511 U CN 206095511U CN 201620920896 U CN201620920896 U CN 201620920896U CN 206095511 U CN206095511 U CN 206095511U
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- hart communication
- pressure transmitter
- control circuit
- communication function
- hart
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Abstract
The utility model belongs to the pressure transmitter field especially relates to a pressure transmitter with HART communication function, pressure transmitter with HART communication function includes: by the electric bridge that sensor resistance constitutes, temperature sensor, with 16 singlechips that electric bridge and temperature sensor link to each other, establish AD conversion module in the singlechip, the singlechip links to each other with EEPROM memory, zero set button, button and display module, the output of singlechip links to each other with current control circuit and communication interface, a branch road output 4 of current control circuit output 20mA analog current, another branch road links to each other with HART communication module, current control circuit input end links to each other with HART communication module and loops in, HART communication module with the singlechip links to each other. The utility model discloses can provide a pressure transmitter with HART communication function.
Description
Technical field
This utility model belongs to pressure transmitter field, more particularly to a kind of pressure inverting with HART communication function
Device.
Background technology
In recent years, pressure transmitter is widely used in the large-scale industry such as chemical industry, metallurgy, generating field, however, existing pressure
, in order to adapt to the demand of industrial circle, common configuration is complicated, relatively costly, not with industry universal, and then not for power transmitter
It is easy in civil area popularization and application.To solve this problem, Chinese patent CN204758198U discloses intelligent differential pressure
Transmitter, including it is microprocessor, A/D converter, D/A converter, liquid crystal display, modem, keyboard, memorizer, steady
Depressor, V/I change-over circuits and power supply, wherein, A/D converter, D/A converter, liquid crystal display, modem, keyboard, deposit
Reservoir, manostat are connected with microprocessor, and V/I change-over circuits input is connected with the outfan of D/A converter, power supply with it is steady
Depressor connects and is microprocessor power supply.However, the utility model cannot complete communication with host computer.
Therefore, based on these problems, there is provided a kind of pressure transmitter with HART communication function has important reality
Meaning.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, there is provided a kind of pressure with HART communication function
Transmitter.
This utility model solves its technical problem and takes technical scheme below to realize：
A kind of pressure transmitter with HART communication function, the pressure transmitter bag with HART communication function
Include：The electric bridge being made up of sensor resistance, temperature sensor, 16 be connected with the electric bridge and temperature sensor single-chip microcomputer,
A/D modular converters, the single-chip microcomputer and eeprom memory, zeroing button, button and display module phase are set in the single-chip microcomputer
Even, the outfan of the single-chip microcomputer is connected with current control circuit and communication interface, and the one of the current control circuit outfan
Individual branch road exports 4-20mA analog currents, and another branch road is connected with HART communication module, the current control circuit input
Loop is connected to form with HART communication module, the HART communication module is connected with the single-chip microcomputer.
Advantage of the present utility model and good effect are：
1st, this utility model is by being provided with HART communication module, further, by HART protocol, frequency signal during communication
Any interference is not produced to the process of 4-20mA.
2nd, by being provided with memorizer, even if power-off, the data for being stored remain to intact preservation to this utility model, with real at any time
Existing intelligent communication.
Description of the drawings
The technical solution of the utility model is described in further detail below with reference to drawings and Examples, but
It should be known that these accompanying drawings are only designed for task of explanation, therefore not as the restriction of this utility model scope.Additionally,
Unless otherwise indicated, these accompanying drawings are meant only to conceptually to illustrate structure construction described herein, without carrying out to scale
Draw.
Fig. 1 is the structural representation of the pressure transmitter with HART communication function.
Specific embodiment
Firstly, it is necessary to explanation, below will be illustrated of the present utility model with HART communication by way of example
The concrete structure of the pressure transmitter of function, feature and advantage etc., but all of description is intended merely to what is illustrated, and not
It is to be understood as any restriction is formed to this utility model.Additionally, being described by or hidden in mentioned each embodiment herein
Any single technical characteristic for containing, or shown or implicit any single technical characteristic in the drawings, still can be at this
Proceed combination in any between a little technical characteristics (or its equivalent) or delete, directly may not carry herein so as to obtain
And of the present utility model more other embodiments.In addition, for the sake of simplifying drawing, same or like technical characteristic exists
Only may be indicated at one in same accompanying drawing.
It will be understood that, when it is said that part ' attach ' to another part, it can be directly connected to another part or
There may be intermediate member.Conversely, when it is said that by part " being directly connected to " to another part when, then it represents that there is no pars intermedia
Part.
Fig. 1 gives the structural representation of the pressure transmitter with HART communication function, below with regard to Fig. 1 illustrating
This utility model.
As shown in figure 1, a kind of pressure transmitter with HART communication function, the pressure with HART communication function
Transmitter includes：The electric bridge being made up of sensor resistance, temperature sensor, 16 be connected with the electric bridge and temperature sensor
Single-chip microcomputer, sets A/D modular converters, the single-chip microcomputer and eeprom memory, zeroing button, button and display in the single-chip microcomputer
Module is connected, and the outfan of the single-chip microcomputer is connected with current control circuit and communication interface, the current control circuit output
One branch road output 4-20mA analog current at end, another branch road are connected with HART communication module, the current control circuit
Input is connected to form loop with HART communication module, and the HART communication module is connected with the single-chip microcomputer.
During work, the outside pressure for introducing will make sensor resistance change, and cause bridge voltage defeated
Go out change, and Jing A/D conversions, be changed into digital signal, a current controling signal is exported after microprocessor computing and is sent to circuit control
Circuit processed, is converted into the output of 4-20mA analog currents.Digital communication is used for by communication interface, pick-up is realized by HART modules
Device HART communication, is zeroed out to transmitter by the button that returns to zero, has source calibration etc. to operate.
Eeprom memory stores all of configuration, characterizes and digital trimming parameter, this memorizer be it is non-volatile, because
This, even if power-off, the data for being stored remain to intact preservation, to realize intelligent communication at any time.Transmitter with HART modules
Transmitter can be tested and configuration by a communicator, or the Upper system by arbitrarily supporting HART communication agreement
Main frame completes communication.
This utility model by being provided with HART communication module, further, by HART protocol, frequency signal pair during communication
The process of 4-20mA does not produce any interference.This utility model is by being provided with memorizer, even if power-off, the data for being stored are remained to
Intact preservation, to realize intelligent communication at any time.
In sum, this utility model can provide a kind of pressure transmitter with HART communication function.
Above example has been described in detail to this utility model, but the content is only preferable reality of the present utility model
Apply example, it is impossible to be considered as limiting practical range of the present utility model.All equalizations made according to this utility model application range
Change and improvement etc., still all should belong within patent covering scope of the present utility model.
Claims (1)
1. a kind of pressure transmitter with HART communication function, it is characterised in that：The pressure with HART communication function
Transmitter includes：The electric bridge being made up of sensor resistance, temperature sensor, 16 be connected with the electric bridge and temperature sensor
Single-chip microcomputer, sets A/D modular converters, the single-chip microcomputer and eeprom memory, zeroing button, button and display in the single-chip microcomputer
Module is connected, and the outfan of the single-chip microcomputer is connected with current control circuit and communication interface, the current control circuit output
One branch road output 4-20mA analog current at end, another branch road are connected with HART communication module, the current control circuit
Input is connected to form loop with HART communication module, and the HART communication module is connected with the single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620920896.XU CN206095511U (en) | 2016-08-22 | 2016-08-22 | Pressure transmitter with HART communication function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620920896.XU CN206095511U (en) | 2016-08-22 | 2016-08-22 | Pressure transmitter with HART communication function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206095511U true CN206095511U (en) | 2017-04-12 |
Family
ID=58469902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620920896.XU Active CN206095511U (en) | 2016-08-22 | 2016-08-22 | Pressure transmitter with HART communication function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206095511U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020113476A1 (en) * | 2018-12-05 | 2020-06-11 | 西门子股份公司 | Method, apparatus and system for displaying measurement information |
-
2016
- 2016-08-22 CN CN201620920896.XU patent/CN206095511U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020113476A1 (en) * | 2018-12-05 | 2020-06-11 | 西门子股份公司 | Method, apparatus and system for displaying measurement information |
| US11809168B2 (en) | 2018-12-05 | 2023-11-07 | Siemens Aktiengesellschaft | Method, apparatus and system for displaying measurement information |
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